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15315342105 = 3572937135937
BaseRepresentation
bin11100100001101110…
…11001001100011001
31110112100111222201210
432100313121030121
5222331211421410
611011420533333
71051346155110
oct162067311431
943470458653
1015315342105
11654a125228
122b750b1249
1315a0c8910b
14a5406cc77
155e9854220
hex390dd9319

15315342105 has 64 divisors (see below), whose sum is σ = 29754109440. Its totient is φ = 6577127424.

The previous prime is 15315342101. The next prime is 15315342131. The reversal of 15315342105 is 50124351351.

15315342105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15315342105 - 22 = 15315342101 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15315342101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44697 + ... + 180633.

It is an arithmetic number, because the mean of its divisors is an integer number (464907960).

Almost surely, 215315342105 is an apocalyptic number.

15315342105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15315342105 is a deficient number, since it is larger than the sum of its proper divisors (14438767335).

15315342105 is a wasteful number, since it uses less digits than its factorization.

15315342105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136018.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 15315342105 its reverse (50124351351), we get a palindrome (65439693456).

The spelling of 15315342105 in words is "fifteen billion, three hundred fifteen million, three hundred forty-two thousand, one hundred five".

Divisors: 1 3 5 7 15 21 29 35 37 87 105 111 145 185 203 259 435 555 609 777 1015 1073 1295 3045 3219 3885 5365 7511 16095 22533 37555 112665 135937 407811 679685 951559 2039055 2854677 3942173 4757795 5029669 11826519 14273385 15089007 19710865 25148345 27595211 35207683 59132595 75445035 82785633 105623049 137976055 145860401 176038415 413928165 437581203 528115245 729302005 1021022807 2187906015 3063068421 5105114035 15315342105